
<!DOCTYPE html>
<head>
    <meta charset="UTF-8" />
    <title>jQuery下拉收缩特效</title>
    <script type="text/javascript" src="http://demo.jb51.net/jslib/jquery/jquery1.3.2.js"></script>
    <script type="text/javascript">
        $(document).ready(function(){
            $(".btn-slide").click(function(){
                $("#panel").slideToggle("slow");
                $(this).toggleClass("active"); return false;
            });
        });
    </script>
    <style type="text/css">
        body { margin: 0 auto; padding: 0; width: 570px; font: 75%/120% Arial, Helvetica, sans-serif; }
        a:focus { outline: none; }
        #panel { background: #69C7F7; height: 200px; display: none; }
        .slide { margin: 0; padding: 0; border-top: solid 4px #F27613; }
        .btn-slide { background: #F27613 url(http://files.jb51.net/file_images/article/201212/20121225165932118.gif) no-repeat right -50px;; text-align: center; width: 144px; height: 31px; padding: 10px 10px 0 0; margin: 0 auto; display: block; font: bold 120%/100% Arial, Helvetica, sans-serif; color: #fff; text-decoration: none; }
        .active { background-position: right 12px; }
    </style>
</head>
<body>
<h1>演示不了 请刷新下</h1>
<div style="display: block;" id="panel">
    <!-- you can put content here -->
</div>
<p class="slide"><a href="javascript:;" class="btn-slide active">点击试试</a></p>
</body>
</html> 
